Volume II of the classic Vorgrimler commentary focuses on four specific decrees enacted by the conciliar fathers:
Decree on Ecumenism (Unitatis Redintegratio): Outlines the Catholic principles, theology, and practical steps for the movement toward Christian unity.
Decree on the Bishops' Pastoral Office in the Church (Christus Dominus): Addresses the pastoral role, duties, and collegial governance of bishops in relation to the global church and local dioceses.
Decree on the Appropriate Renewal of the Religious Life (Perfectae Caritatis): Directs the adaptation and spiritual renewal of religious orders and institutes according to the Gospel and the changing modern era.
Decree on Priestly Formation (Optatam Totius): Provides guidelines for the academic, spiritual, and pastoral training of seminarians for the modern priesthood.